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WiMAX versus 3G and Wi-Fi

How does WiMAX compare with the existing and emerging capabilities of 3G and Wi-Fi? The throughput capabilities of WiMAX depend on the channel bandwidth used. Unlike 3G systems, which have...
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3g, antenna, broadband, cdma, cell, difference between, difference between wimax and wifi technology, fixed, lte vs wimax comparison table, modulation wimax, point, solution, system, telecom, uplink, wifi, wifi and wimax difference, Wimax

Handover Measurements in LTE

Measurements to be performed by a UE for intra/inter-frequency mobility are controlled by e-UTRAN, using broadcast or dedicated control. If the frequency center of the measured cell is the same...
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cell, handover, how handover works in lte in same frequency without measurement gap?, lte, lte handover, measurements, rrc, telecom

Types of Power Control in CDMA

Reverse power control Open loop power control Closed loop power control Inner loop power control:  800 Hz Outer loop power control Forward power control Message transmission mode: threshold transmission periodic...
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active, cdma, cell, code, handoff, interleaving, long, modulation, power, power control, power control in cdma, qpsk, scrambling, short, soft, softer

Long Code & Short Code In CDMA

The long code is a PN sequence with period of 242-1chips The functions of a long code: Scramble the forward CDMA channel Control the insertion of power control bit Spread...
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active, cdma, cell, code, handoff, interleaving, long, modulation, pn, power, power control, qpsk, scrambling, short, soft, softer

Interleaving in CDMA

It can be seen from the figure that the data are read row by row into an interleaver at the transmit end,read column by column out (this process is called...
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active, cdma, cell, code, handoff, interleaving, long, modulation, power, power control, qpsk, scrambling, short, soft, softer

India’s Supreme Court Rejects Appeals Over Confiscated GSM Licenses

India’s Supreme Court has rejected petitions to review its decision to void all 122 of the controversial GSM licenses that were awarded in 2008.   Seven mobile networks affected by...
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cell, google, gsm, news, telecom, telecom news, updates, usa

How Synchronization Channel Works in LTE?

After the power on, the UE knows:  the UE category and capability. the preferred PLMN. the carriers. The UE needs to know: The frame synchronization to be able to decode...
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access, BCH, cell, lte, lte sync, no of primary channel identifier in lte, radio, resource block, rrc, step in lte, sync, telecom

Synchronization & BCH for TDD Frame in LTE

The Primary synchronization signal (PSS): is placed at the third symbol in subframes #1 and #6. The secondary synchronization signal (SSS): is placed at the last symbol in subframes #0...
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access, BCH, cell, d-bch lte, lte, lte sync, lte tdd pbch, radio, rrc, step in lte, sync, telecom

Random Access Procedure in LTE

When the UE has obtained system information, it has to request an RRCconnection. Like it has no dedicated resources, the UE requests the connection using the Random Access Procedure using...
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random access procedure lte, lte rrc states, random access preamble lte, lte cell search procedure detailaccess, BCH, cell, contention free random access, enodeb, lte, lte random access procedure, lte sync, ra-rnti associated preamble, radio, rnti, rrc, step in lte, steps for ue and enodeb, sync, telecom, uplink

Step of RRC Connection Setup in LTE

When the UE is powered up, it has to be RRC connected to be able to exchange data and signaling with the network. After the RRC connection, the Initial network...
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Step of RRC Connection Setup in LTE, ue, rrc, connection, rrc connection, initial attachaccess, attach, BCH, cell, contention free random access, enodeb, lte, lte rrc connection, lte sync, radio, rrc, rrc connected users lte, rrc connection setup in lte, step in lte, sync, telecom, uplink

Purpose of Channelization Code & Scrambling Code in WCDMA

Purpose of WCDMA Channelization Code Channelization code is used to distinguish different physical channels of one transmitter For downlink, channelization code ( OVSF code ) is used to separate different...
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Purpose of Channelization Code, Scrambling Code in WCDMA, transmitter, physical channels, wcdma downlink, wcdma carrier, services maximum, wcdma codes4. what is the difference between scrambling codes and channelization codes, cdma, cell, chanalization code, channelization code, code, difference between bsic and umts scrambling code, downlink, meaning of downlink channelization codes, ovsf code, physical channel, scrambling and channelization codes of cells, telecom, transmitter, ue, uplink

System information & DL-SCH data in LTE

System information 1920 bits or 1728 bits are to be transmitted for normal or extended CP resp.. The PBCH is transmitted every 40 ms. The bit scrambling depends on the...
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cell, lte, number of symbols used for phich, ofdma, PBCH, pbch mapping, sch lte, symbol, telecom

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